Finding the Fourth Proportional to 2,470.72, 3,702.42 and 2,288.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.72 : 3,702.42 = 2,288.47 : x
2. Step 2: Convert to fraction form
   2,470.72/3,702.42 = 2,288.47/x
3. Step 3: Cross multiply
   2,470.72x = 3,702.42 × 2,288.47
4. Step 4: Simplify right side
   2,470.72x = 8,472,877.10
5. Step 5: Solve for x
   x = 8,472,877.10/2,470.72
6. Step 6: Final answer
   x = 3,429.31